17-year-old charged in girlfriend's death

A 17-year-old who said his girlfriend shot herself in the chest has been charged with her murder after the Hillsborough County Medical Examiner found that the girl was shot in the back.

The Tampa Bay Times ( http://bit.ly/WAl7rt) reports the teen has been charged with second-degree murder. Sara Gonzalez died after being shot Friday night.

The teen initially told officers that Gonzalez was shot by an unknown assailant who knocked on the front door, then fired when she opened it. Deputies say they found a Glock 9mm handgun and one shell casing in a crawl space under the mobile home. The teen then told police that Gonzalez shot herself in the chest with his gun during an argument.

An autopsy revealed that Gonzalez had been shot once, in her lower back.